Re: How to get started with adwords?
I would suggest you start with the AdWords Help center and learn what the system is, how it works, and how the different options interact, before you start spending your money advertising.
I would also suggest that you sit down, before you build your first campaign(s) and get a clear picture of your AdWords goals - make certain you have a clear understanding of what you're trying to achieve.
There's also good information in the Articles section of this Community and, of course, if you have specific questions you can always ask them!
Google AdWords Top Contributor